Mitsubishi Electric 800 Series Instruction Manual page 549

(N) Operation via communication and its settings
• The following charts show operations when a communication line error occurs.
Pr.502 = "0" (initial value)
OFF
Communication
fault
Fault display
(E.SER/E.OP1)
OFF
Fault output
(ALM)
Alarm output OFF
(LF)
Pr.502 = "2"
Fault occurrence
Communication
OFF
fault
Fault display
(E.SER/E.OP1)
Fault output
(ALM)
Alarm output OFF
(LF)
Pr.502 = "4"
Communication OFF
fault
Warning display
(CF)
OFF
Fault output
(ALM)
OFF
Alarm output
(LF)
548
PARAMETERS
Fault occurrence Fault removal
ON
Motor coasting
Display
ON
ON
Fault removal
ON
Decelerates
to stop
Display
OFF
ON
Fault recognition Fault removal
ON
Pr.779 = "9999"
Pr.779 ≠"9999"
(Runs at the frequency setting of Pr.779)
Display
ON
Pr.502 = "1"
Communication
OFF
fault
Time
Fault display
(E.SER/E.OP1)
Fault output
(ALM)
OFF Alarm output
(LF)
Pr.502 = "3"
Communication
OFF
fault
Time
Fault display
Fault output
(ALM)
OFF Alarm output
(LF)
OFF
Pr.779
Time
OFF
Fault occurrence
OFF ON
Decelerates
to stop
OFF
OFF ON
Fault recognition
OFF ON
Pr.779 = "9999"
Pr.779 ≠"9999"
(Runs at the frequency setting of Pr.779)
Not displayed
OFF
OFF ON
Fault removal
OFF
Time
Display
ON
OFF
Fault removal
OFF
Time
OFF